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034 Motorsports Cast Stainless Steel Racing Catalyst for Audi A4 A5 B9 2.0 TFSI 2017-2020
$671.40
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If you're looking to really unleash the potential of your B9 Audi A4, A5, or Allroad, let me tell you about the Cast Stainless Steel Racing Catalyst from 034Motorsport. This isn’t just another aftermarket part; it’s a game changer that replaces the factory catalytic converter, which, let's be honest, can be a bit of a bottleneck for performance. With this upgrade, you’re not just gaining power; you’re also getting a more responsive engine that feels alive.

What I love about this racing catalyst is how it enhances the driving experience. You’ll notice an increase of around 22 horsepower and torque throughout the powerband, which is significant when you’re pushing your Audi to the limit. Plus, it reduces turbo lag and gives you quicker throttle response—think about that exhilarating feeling when you hit the gas and your turbo kicks in without hesitation. And let’s not forget the sweet sound of the exhaust note; it’s music to any car enthusiast’s ears.

The design of the catalyst is optimized for flow and performance. It features a hefty 135mm Euro 3 racing catalytic converter right in the factory location. This means installation is a breeze—just drop it in without any fuss. It comes with all the necessary hardware, including an integrated 4-bolt flange at the turbine outlet and an oxygen sensor bung right after the catalyst. Everything is precision CNC-machined, making the fitment spot on. The whole thing is made from 304 stainless steel and TIG-welded, so you know it’s built to last and resist corrosion.

Here’s what you can expect:

  • Increased horsepower and torque (+22 HP / +22 TQ peak)
  • Faster turbo spool-up—100-200 RPM quicker
  • A more aggressive exhaust note that enhances your driving experience
  • Simple bolt-in upgrade; no complicated modifications needed
  • Engineered by the talented folks at 034Motorsport
  • Factory-location 135mm Euro 3 racing catalytic converter (200 CPI)
  • Durable 304 stainless steel construction with integrated flanges
  • TIG welded with a sleek titanium-look finish

What’s included in the package:

  • 034Motorsport Cast Stainless Steel Performance Downpipe
  • Integrated Euro 3 Racing Catalytic Converter
  • X34 Carbon Fiber Audi TT RS & RS3 Air Intake Tube
  • X34 Carbon Fiber Audi TT RS & RS3 Closed-Top Upper Airbox
  • Factory Turbocharger Outlet Gasket
  • Factory Catalyst to Downpipe Gasket
  • Installation Hardware

Fitment:

  • Audi A4 B9 2.0 TFSI (2017-2020)
  • Audi A5 B9 2.0 TFSI (2017-2020)

Important Note:

  • This racing catalyst requires a Stage 2 ECU remap to avoid any check engine lights from the removal of the factory catalyst. Keep in mind that this product is intended for competition use only and isn’t street legal.

In short, if you want to take your Audi to the next level, this Cast Stainless Steel Racing Catalyst is a solid investment. It’s all about maximizing your turbocharged engine's potential and enjoying every moment behind the wheel.

Important: This racing catalyst requires a Stage 2 ECU remap to eliminate any check engine lights due to removal of the factory catalyst.Emissions Disclaimer

  • This product is sold for off-road use only.
  • This racing catalyst requires a Stage 2 ECU remap to eliminate any check engine lights due to removal of the factory catalyst.
  • By purchasing this product, you understand this product is sold for competition use and is not legal for use in highway or street vehicles.

Other Part Numbers:
034 Motorsports #VR034-105-4043

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2017-2022
Audi A4
2016, 2018-2019, 2021-2022
Audi A5

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Who is 034 Motorsport?

034 Motorsport was founded in 2005 for enthusiasts by enthusiasts with a passion for bringing motorsport-quality performance upgrades and tuning to Audi and Volkswagen vehicles. Since its inception, the company has grown to meet the expanding needs of petrolheads with innovation, quality, and performance in mind. 034 Motorsport is dedicated to providing customers with only the finest performance products, tuning, and service for their Audi or Volkswagen.

Dedicated to the Car Scene

034Motorsport is owned and operated by car enthusiasts just like you! This means that you can count on them for expert advice and products that deliver each and every time. When they aren’t at work, you can find the 034 Motorsport folks at local car meets, Audi Club Track Days, or simply at home working on their own rides.   

Being gearheads themselves, the 034 Motorsport staff understands the importance of a strong automotive community and giving back to the customers they owe their success to. 034Motorsport is a proud sponsor of Audi Club North America's Golden Gate Chapter, in addition to several other popular automotive forums, including Audizine, Fourtitude, VWvortex, and QuattroWorld. The brand also supports NorCal Audi Club, and frequently hosts events for its members.

Involvement in Competition Racing

034Motorsport stays true to its roots (and name) by actively participating in motorsport events, like time attacks, endurance racing, and hill climbs. These events allow the company to simultaneously showcase its products and racing expertise, while putting them to the ultimate test. A number of 034 Motorsport’s most iconic projects, including the Time Attack A4, GTI-RS, and 80tq raised the bar for on-track performance, while also accelerating production and testing processes. 

Extensive Quality Product Lineup

034 Motorsport is well-known for producing some of the finest race-proven performance upgrades for Audi and Volkswagen enthusiasts. The 034 Motorsport performance facility is located in Fremont, California and home to its engineering, manufacturing, and tuning departments. The company prides itself on in-house manufacturing, where it designs, fabricates, calibrates, and tests all products under one roof with complete control. 034 Motorsport carries a wide range of products that includes suspension parts, motor mounts, intakes, silicone hoses, and numerous underhood goodies.

Find 034 Motorsport at Vivid Racing

You can find an extensive lineup of quality 034 Motorsport parts right here at Vivid Racing. We carry everything from 034 Motorsport blow-off valves, cold air intakes, intercoolers, differentials, and ventilation systems to wheel spacers, springs, turbos, mid-pipes, and steering components. Whatever you may possibly need, chances are we carry it! If you cannot find a particular item above or have any questions, please call our sales team at (480) 966-3040.

It is the intention of 034Motorsport to sell only quality products. We offer a 1-year warranty against defects in workmanship or materials, not extending to normal tear and wear or mis-use. You must provide us with a proof of purchase, defect or the result of wear or mis-use. Some products have less than 1-year warranty. Please inquire before ordering.

034Motorsport will only replace or repair warranty items. No refunds will be given. 034Motorsport or the product manufacturer will inspect or test all products prior to a warranty claim adjustment. This process may take up to 6 weeks. You must obtain an RMA number from either Customer Service or Technical Support prior to any return. All products we offer are warranted to be free from defects prior to installation. Any modification or improper use voids this warranty. This warranty does not cover installation. 034Motorsport shall be the final arbitrator in interpreting the extent and remedy of warranty.

034Motorsport warranties are not transferrable, and available to the original purchaser only, however if you do buy a 034Motorsport part second hand and have a problem with it, do contact us as we can typically arrive at a reasonable, fair solution.

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